If the radiator is panelled, which leads to a higher temperature on the radiator than in the room, the temperature is set on the Homematic IP Wall Thermostat, which measures the actual room temperature. The radiator thermostat on the radiator is then regulated by the control unit so that the room temperature is reached according to the wall thermostat setpoint. This means that the radiator thermostat is "overridden" or adjusted to maintain the correct room temperature, even if the temperature directly at the radiator is higher than in the room. The wall thermostat measures the room temperature and sends it to the radiator thermostats, which then regulate the heating output.

The temperature is controlled via the wall thermostat, which measures the room temperature and sends it to the radiator thermostats. The radiator thermostats then regulate based on the temperatures they measure directly at the radiator. The maximum adjustable temperature for radiator thermostats is not usually specifically stated, but is typically around 28 degrees Celsius for most heating systems. If your radiator is behind a cover, this may affect the accuracy of the measurement. It is advisable to position the thermostat so that it measures the room temperature accurately.

The units in the set are not linked by Wi-Fi. Instead, they communicate using the Homematic IP Wireless Protocol at 868 MHz, which is a reliable and interference-free method for smart home devices. This protocol allows for direct communication between devices without needing Wi-Fi, ensuring robust and efficient operation within the smart home ecosystem.